Leasing mechanism for textile machines



1958 T. F. suses LEASING MECHANISM FOR TEXTILE MACHINES I 5 Sheets-Sheet 1 Filed Feb. 20, 1957 INVEN TOR. 7770172629 1'? ,Sqyys, BY w ATTORNEYS NOV. 18, F SUGGS 2,860,400

LEASING MECHANISM FOR TEXTILE MACHINES Filed Feb. 20, 1957 5 Sheets-Sheet '2 INVENTOR.

ATTORNEYS Nov. 18, 1958 Filed Feb. 20, 1957 T. F. SUGGS LEASING MECHANISM FOR TEXTILE MACHINES 5 Sheets-Sheet 3 INVENTOR.

720/2755 Slay- @144 65% ATTORNEYS 'r. F. SUGGS I I 2,860,400

LEASING MECHANISM FOR TEXTILE MACHINES Nev. 18, 1958 5 Sheets-Sheet 4 Filed Feb. 20, 1957 INVENTOR.

. Tfiflmasi. Ja ys, BY 4/ 44 ATTORNEYS Nov. 18, 1958 SUGGS 2,860,400

LEASING MECHANISM FOR TEXTILE MACHINES Filed Feb. 20, 1957 5 Sheets-Sheet 5 IN VEN TOR.

A TTORNEYS "and "reliable leasing mechaiii srnfby v'vh United States Patent "'0 M "This iriv'etitibii "relates to l'easiii'g materialism 3 forjteiitile machines used in the preparation or treatment of; multiple yarns 'in which 'the ya'i'ns arediawn froth supplies by a pair erespasea i'olls aiid elivered "to the of the machines whereby the treatment of the yarns is effected.

The chijefaim offiiy inveiiti-onis to przsv'idea'simpn ch the leasing is accomplished quicklyanld easily jus t prior t o enfrybf the yarns between the fiiip-roll s. "Briefly de seribe' d, iny invention comprises a pivot'd leasing 'i e'e'd" which -is shaped to conform, when in noriii'ail int iperative position, to the configuration ofth'eeiit I lsf'said reed having "in alternate dtits mar spaced stops between "which blteriiat I so'thatupon*'s'iiiingiiig5 idredt anang'ular position, the alternate yarns ar'e placed "-l-a't'rally "relative 'to the other yarns 'b'ybiie set of the stops to form"'a shed forintroduc'tion of "a leas'ihg't'hread; are an as'sociate'd iiidependently pivotedebdfieratwe ele'nientjwhich-npon riiovement from its normal position causes both yarns to be shifted, with "incidental arresting "of "the alternate yarns by the other group of stopsto form a-reverse shed for introduction thereiiito 'of a second -leasing thread.

Other objects and attendant advantages-win appear from the following detailed description of the attached drawings, wherein:

Fig. 1 is a view in top plan of a yarn crimping machine conveniently embodying the leasing mechanism of my invention.

Fig. 2 shows the machine in side elevation.

Fig. 3 is an end elevation of the machine viewed from the right of Figs. 1 and 2.

Fig. 4 is a broken out fragmentary plan view of the leasing reed drawn to a large scale.

Figs. 5-8 are fragmentary views in longitudinal section showing successive sequential steps in effecting a leasing operation in accordance with my invention.

Figs. 9 and 10 are fragmentary detail views in section taken as indicated respectively by the angled arrows IX-IX and X--X in Figs. 5 and 7.

With more specific reference, first more especially to Figs. 1-3 of these illustrations, the numerals 10 and 11 designate a pair of horizontally-arranged nip rolls by which yarns Y and Y to be crimped are drawn from supplies, not shown, through a collecting eye board 12 and an ordinary spacing reed 13 and delivered to a crimping means generally indicated at 14. The shaft 15 of the roll 10 is journalled in bearings 16 fixed in laterally spaced longitudinal side frames 17 of the machine upstanding from a bed 18; while the shaft 19 of the roll 11 is journalled in bearing blocks 20 which are slidable in horizontal gnideways 21 provided by said side frames. The roll 11 is yieldingly urged toward the roll 10 by means of a spring 22 whch bears centrally against a transverse bar 23 connecting rearward projections 24 on the bearing blocks 20, the pressure of said spring being regulatable by means of a screw 25 threadedly engaged in a lug 26 yarns are "passed,

onthe bed 18 and provided at its outer end with a manipulating hand wheel 27. As shown in Fig. l, the roll shaft 15 is arranged to be positively driven through a sprocket wheel 28 and chain 29 from a motor (not illustrated); and through a-pair of intermeshing spur gears 30 and 31, said shaft communicates motion to the roll shaft 19 so that the rolls 10 and '11 are driven contrariwise in unison 'as indicated by the arrows in Figs. 2 and 5-8.

The leasing mechanism with which the present invention is more particularly concerned comprises a leasing reed which is comprehensively designated 35, and which is fixed upon a transverse shaft 36 journalled in stationary bearing blocks 37 on the tops of the side frames 17 to one sideof the rolls 10 and 11. The leasing reed35 is made upof laterally-spaced blade elements 38 struckfrom thin "stiff "sheet metal or the like, "said elements being 'welded'or'otherwise rigidly connected'to'the shaft 36 and being united at their distal ends by acrossrod 39. 'As shown in 'Fig. 2, the elements 38 are V shaped with 'the sides ofthe V roundedccncent'rically with'the'curvatures of the rolls "10 and '11 to correspond to the configuration of the upper bight between said rolls. his to be particularly noted that when the leasing reed 36 is in the normal position of-Fig. 2, the pointed junctures of the arcs of the component elements '38 are disposed within 'theupper bight ofsaid rolls withoutco-ntacting the latter. Set, fora purposepresently explained, into the alternate spaces ordents'of'theleasing reed 35'equally distantfro-m the center points of theelernents 38,' are-'pairs of closely spaced stop blocks 40 and "41. The shaft 36 is'operable by means of a hand lever 42, andto it are alfixed, adjacent-the inner -sidesof the bearing brackets 37, disks 43 having annularly-spaced indentations 44 and 45 in the contiguous faces thereof for selective engagement by spring plungers 46 lodged'i'n said bearing brackets to keep the leasing'reed 35 either in. its "normal oroperative positions 'as alsomore fully explained presently.

The leasing mechanism ofmy invention further includes anarm 50"which-normally"occupies the lposition'in which it is shown in Figs. 1 and 2, said arm being fixed upon one end of a short transverse shaft 51 which is disposed at the opposite sides of the rolls l0 and 11 and is rotatively supported in a bearing bracket 52 pendent from the bed 18 of the machine. At its upper or distal end, the arm 50 has a rod 53 that extends crosswise of the machine and serves as a guide over which the yarns Y and Y pass enronte to the rolls 10 and 11. For ease of manipula- Operation With the arm 50 and the lease reed 35 normally positioned as in Fig. 2, it will be seen that the yarns Y and Y will be directed vertically down to the rolls 10 and 11 and maintained in definite separation by the downward pointed portions of the components 38 of said lease between which said yarns pass until just before entering the bight of said rolls. When a lease is to be made, the machine is stopped. Thereupon the reed 35 and the arm 50 are swung to the positions in which they are shown in Figs. 5 and 9, in which positions they are latched by engagement of the spring pressed plungers 46 in the indentations 44 of the disks 43 on shaft 36, and of the spring pressed plunger 55 in the indentation 58 of the sector 59 on shaft 51. As a result, the segments of the yarns Y between the rod 53 and the rolls 10 and 11 are engaged by the stops 41 in the alternate dents of the leasing reed 35 and are displaced laterally to the left of the corresponding segments of the yarns Y in the intermediate dents of said reed. A shed S is thereby formed through which a lease thread T is inserted. With this accomplished, the arm 50 is swung counterclockwise through the position of Fig. 6 until stopped in the position of Fig. 7 by engagement of the spring plunger 55 into the indentation 56 in the sector 59 on shaft 51. As the arm is so swung the segments of the yarns Y are displaced leftward With incidental arresting of the yarns Y by the stops 40 of the reed 35 and formation of a reverse shed S through which a second leasing thread T is introduced as in Figs. 7 and 10. Finally, the arm 50 is restored to the normal position of Fig. 8, and the leasing reed 35 to the normal position of Fig. 2, whereupon the machine is re-started to proceed with the crimping of the yarn as before.

While for the purposes of exemplification herein I have shown and described my improved leasing mechanism in connection with a crimping machine it is not to be considered as limited to such application since, by suitable modifications within the scope of the appended claims, it is equally adaptable to other types of textile machines such as slashers and the like.

Having thus described my invention, I claim:

1. Leasing mechanism for a textile machine including in combination, a pair of opposed rolls; a guide rod over which plural yarns are passed and directed into the nip of the rolls; and means operative to displace segments of alternate yarns between the guide rod and the nip of the rolls laterally relative to corresponding segments of the intervening yarns in one direction to form a shed for insertion therein of a leasing thread, and thereafter to displace the segments of the alternate yarns in the opposite direction relative to the corresponding segments of the intervening yarns to form a reverse shed for insertion therein of a second leasing thread.

2. Leasing mechanism for a textile machine including in combination, a pair of horizontally arranged opposed rolls; an arm pivotally supported adjacent the rolls at one side thereof and provided at its distal end with a transverse rod high above the rolls, over which a sheet of yarns is guided to pass vertically, into the nip of the draft rolls; and a reed pivotally supported adjacent the rolls at the other side thereof and normally positioned horizontally 4 immediately above the rolls with the yarns passed through the dents thereof, alternate dents of the reed respectively having therein pairs of closely spaced stops between which alternate yarns pass whereby, upon upward movement of the reed to angular position, segments of alternate yarns between the guide rod and the rolls are intercepted by one group of the stops and corresponding segments of the intervening yarns are relatively displaced laterally to form a shed for the introduction thereinto of a leasing thread, and whereby, upon movement of the guide rod arm through an acute angle toward the reed, the segments of alternate yarns are intercepted by the other group of stops and the corresponding segments of the intermediate yarns are relatively displaced laterally in the opposite direction to form a reverse shed for introduction thereinto of a second leasing thread.

3. Leasing mechanism according to claim 2, further including means for releasably holding the guide rod arm and the reed selectively in their normal and leasing positions.

4. Leasing mechanism according to claim 2, wherein the reed is afiixed to a transverse shaft journalled in stationary bearings, and wherein a disk secured to said shaft has a pair of annularly-spaced indentations adapted to be selectively engaged by a spring-pressed plunger lodged in one of the hearings to hold the reed yieldingly in its normal and leasing positions respectively.

5. Leasing mechanism according to claim 2, wherein the guide rod arm is aflixed to a transverse shaft journalled in stationary bearings, and wherein a sector secured to said shaft has a pair of annularly-spaced indentations adapted to be selectively engaged by a spring-pressed plunger lodged in one of the bearings to hold said arm yieldingly in its normal and leasing positions respectively.

6. Leasing mechanism according to claim 2, wherein the reed is formed by multiple bars fashioned from thin sheet material and shaped to conform with the configuration of the upper bight between said rolls.

References Cited in the file of this patent UNITED STATES PATENTS 344,093 Entwistle June 22, 1886 

